I asked a question that didn't receive enough attention, so I started a bounty. It remained unanswered for a week, and my bounty automatically closed, but I didn't get my points back. How is this helpful? I didn't any answers or even hints (I didn't even receive more attention), so my bounty was basically wasted. Now I want to start a new bounty with more points, but don't have enough. How is this an encouraging feature?